Modern Vespa

Hello guys,
I have a 2014 Vespa Primavera 2t 50cc ZAPC53200 model.
I am looking to install the Vespa Primavera 50cc 2T (2013-17) Malossi Sport 70cc Cylinder Kit (Linked below).
I know that I should also get the malossi larger mm carburetor and some other modifications such as exhast etc. however by installing the 70cc cylinder kit alone and removing the restrictor what can I expect? Faster acceleration, higher top speed? eventually later on I will also make the other modifications but as a first modification what will I gain from it.
Thanks

Link for kit:https://www.ebay.co.uk/itm/176114766268?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D20230823115209%26meid%3D065113082b0445019efca1b37ef68b62%26pid%3D101800%26rk%3D1%26rkt%3D1%26itm%3D176114766268%26pmt%3D0%26noa%3D1%26pg%3D4375194%26algv%3DRecentlyViewedItemsV2SignedOut%26brand%3DMalossi&_trksid=p4375194.c101800.m5481&_trkparms=parentrq%3A92bd7c1618d0adba492df83cffffd908%7Cpageci%3A1d51728f-c806-11ee-ad36-12c396d918d8%7Ciid%3A1%7Cvlpname%3Avlp_homepage

I think the usual advice is that it typically isn't worth the time/effort/labour of kitting a 50cc four stroke vs selling it and buying a 150, but I can get why for some it's worth it for laws/insurance/fun reasons. Good luck.

Think they're talking about a two stroke 50cc, but definitely worth seeing the price uplift to a larger engined Primavera (125cc is most common in England).

Woah. I just saw 2014 Primavera and my mind went North America-mode. No 2Ts here. Oops!